Page Comparison

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• Set up aggregate attributes on pipes
• Read aggregate attributes from pipes into a Streamstream

In this exercise you will create a report of total and average last billed amounts, aggregated by Region:

In your model, add a new

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stream:

• Hover over Customers in England, and press  - Add a new Stream
• Give the new Stream the Name: Customer Summary by Region
• Double-click on the new pipe to open the details form
• Go to the tab Sort/Group section:
  
  • Drag the Attribute Region from the left-hand box Open the list of attributes, and drag the attribute Region into the list of sorting/ grouping attributes
• Go to the Aggregate Attributes tab section:
  • Press  to add a new aggregate attribute
  • In the new aggregate attribute form:
    • Set the Aggregate Stream Function to Count
    • Leave the Attribute blank
    • Set the New Attribute Name to CountRecords
    • Press 
  • Add another aggregate attribute: press 
    • Press Image Modified - Show the list of Attributes
    • Drag the attribute BILLAMOUNT into the aggregate attributes list
    • Note that this already uses the attribute function Sum – leave this as it is
    • Update the name of the aggregate value:
      • Double-click on the new aggregate attribute
      • Update the
    New Attribute
    • • Name to TotalLastBillAmount
      • Press Image Modified
  • Add another aggregate attribute:
  press Image Removed
  • • Press Image Added - Show the list of Attributes
    • Drag the attribute BILLAMOUNT into the aggregate attributes list
    • Update the details for this new aggregate attribute:
      • Double-click on it
      • Update the
  Aggregate
  • • • Stream Function to Average
      • Update the
  New Attribute
  • • • Name to AvgLastBillAmount
      • Press Image Modified

Now you need to configure your output Stream:

• Drag the Attribute attribute Region from the Sort/Group tab section of the pipe onto the Stream stream Customer Summary by Region
• Drag the aggregate attributes you added from the Aggregate Attributes tab section of the pipe onto the Stream stream Customer Summary by Region
• In the main pipe configuration form, press 

Remember to save your model layout.

• Run Analysis analysis on Customer Summary by Region
• Have a look at the data in this Stream stream – check that the aggregated report has been generated correctly